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gfxstream: Check host allocation mode for external memory

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New host feature allows usage of external_memory_host extension
for external memory support, mainly for software renderers which
don't implement platform specific extensions.

Also moves enablement of queue_family_foreign outside of android,
to allow it also on linux guests (ref: github PR#74), and removes
the check for VK_MVK_moltenvk extension in favor of metal mode.

Test: -gpu lavapipe -feature VulkanNativeSwapchain on windows

Reviewed-by: David Gilhooley <djgilhooley.gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38153>
This commit is contained in:
Serdar Kocdemir 2025-10-18 08:03:00 +00:00 • committed by Marge Bot
parent deb48556dc
commit 7bc14977a8
1 changed files with 15 additions and 5 deletions
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20
src/gfxstream/guest/vulkan_enc/ResourceTracker.cpp
View file

@ -1972,27 +1972,37 @@ VkResult ResourceTracker::on_vkEnumerateDeviceExtensionProperties(
}
#endif
// TODO: query ExternalMemoryMode from vkEmulation directly to compansate for the host platform
// correctly, instead of host extension checks, or make this support mandatory for Android.
bool win32ExtMemAvailable = getHostDeviceExtensionIndex("VK_KHR_external_memory_win32") != -1;
bool posixExtMemAvailable = getHostDeviceExtensionIndex("VK_KHR_external_memory_fd") != -1;
bool metalExtMemAvailable = getHostDeviceExtensionIndex("VK_EXT_external_memory_metal") != -1 ||
getHostDeviceExtensionIndex("VK_MVK_moltenvk") != -1;
bool metalExtMemAvailable = getHostDeviceExtensionIndex("VK_EXT_external_memory_metal") != -1;
bool hostAllocationExtMemAvailable =
getHostDeviceExtensionIndex("VK_EXT_external_memory_host") != -1;
bool qnxExtMemAvailable =
getHostDeviceExtensionIndex("VK_QNX_external_memory_screen_buffer") != -1;
bool hostHasExternalMemorySupport =
win32ExtMemAvailable || posixExtMemAvailable || metalExtMemAvailable || qnxExtMemAvailable;
bool hostHasExternalMemorySupport = win32ExtMemAvailable || posixExtMemAvailable ||
metalExtMemAvailable || hostAllocationExtMemAvailable ||
qnxExtMemAvailable;
if (hostHasExternalMemorySupport) {
#ifdef VK_USE_PLATFORM_ANDROID_KHR
filteredExts.push_back(
VkExtensionProperties{"VK_ANDROID_external_memory_android_hardware_buffer", 7});
filteredExts.push_back(VkExtensionProperties{"VK_EXT_queue_family_foreign", 1});
#endif
#ifdef VK_USE_PLATFORM_FUCHSIA
filteredExts.push_back(VkExtensionProperties{"VK_FUCHSIA_external_memory", 1});
filteredExts.push_back(VkExtensionProperties{"VK_FUCHSIA_buffer_collection", 1});
#endif
filteredExts.push_back(VkExtensionProperties{"VK_EXT_queue_family_foreign", 1});
} else {
#ifdef VK_USE_PLATFORM_ANDROID_KHR
mesa_loge(
"%s: Did not recognize any form of external memory support on the host device/driver. "
"Guest won't support VK_ANDROID_external_memory_android_hardware_buffer!",
__func__);
#endif
#ifdef LINUX_GUEST_BUILD
// Note: Linux gfxstream-vulkan driver automatically assumes some form of external memory
// support on the host, and advertises VK_KHR_external_memory_fd and